DWI: Provides relative to operating a vehicle while intoxicated

This bill updates Louisiana's laws regarding driving under the influence by clarifying implied consent rules for chemical tests involving alcohol, drugs, and their combinations. It applies to drivers of cars, watercraft, and locomotives, requiring them to submit to blood, breath, or urine tests if arrested for operating a vehicle while impaired. The legislation specifically mandates that coroners perform toxicology screens on victims of traffic fatalities and ensures these results can be used as evidence in court. Additionally, it defines "drug" broadly to include any substance that impairs a person's ability to operate a vehicle safely.